Clint,
Thanks a lot. Really appreciate it and this is a much needed component that is simple and well done!
Is there another event I can use to callback from after all the selections have been made and the combo departed? I couldn't see how to do this from the code. I'm trying to avoid using an outside event (like a button) to respond to new selections.

First of all, thanks for this wonderful plugin. I am using this plugin in the editable grid as cell editor. Everything seems to be working for me once I use the code provided by Fargs if the store is loaded only once. But I am facing a small issue if I am trying to reload the store. I have a grid with two columns, 2nd column editor list is the checkboxcombo and it depends on the 1st column value. So I am using the getCellEditor to get the first column value and reloading the list. This is giving me one interesting problem, the previous list is also appending to the new list value and the checkboxes are also not checked. Can you suggest me how to fix this.

Hi,
I am trying this component vs saki's one. Because of problems of saki's one with a grid, I'd like to use your component, but the main problem for me is in performance: in CheckboxCombo rendering long lists takes a good while. I have a combo box of all countries (fairly standard list) and although the data is fetched quickly (JSONStore), the combo takes a good few seconds before its fully rendered with the options. As well, the combo insists on calling the store's load every time and refetching the data from the server, while saki's one does not do that with the same store/combo configuration.
Is it a problem with the component or something I'm doing wrong?

To be honest I haven't really done much performance testing, as I don't really use this component with very long lists. I'll do a little bit of digging and see what I can find out...

As for the reloading of the store, this is because you set triggerAction:'all'. The behavior is slightly different than a regular combo box, since we aren't really filtering the results as the regular combo box does. Try removing that config and it should work fine.